You arte ok in putting one on, I have an origional 3-speed car (now a 4) with disc brakes, did not have a power booster until I added one, the clutch rod clears it by an easy inch, never was a probalem during installation-BUT make sure that you have the correct length rod that goes from the pedal to the booster as I recall them being a different length or something, I just rember there buing a bummer somewhere along the line and I needed to use the rod from the car that I got the booster from, none the less it was an easr install